RIYADH:  The Saudi Ministry of Culture said it selected Tunisia as the guest of honor of the upcoming edition of Riyadh International Book Fair, the Saudi Press Agency reported.  The Riyadh International Book Fair will be held from Sept. 29 to Oct. 8, at Riyadh Front, and organized by the Literature, Publishing and Translation Commission. The SPA statement said choosing Tunisia as the guest of honor is in line with the relations that bind the two countries and is part of the joint effort to enhance cooperation in the cultural field.